[reggoboy]

Sorry, I should have thought of that. Rebooting the iPad, which is the side that reported the error, fixed it.

I noticed that both client and server should the complete message at the same time now. Before, the client used to be done a lot sooner, and I would wonder what the server is doing since it already updated the client. Anyway, this time they both hit the finish line at the same time :-) 

Thanks, and sorry!